I've been asked to Develop a DNN solution and have checked out the code. Unfortunately it is not building because of 3 errors in the checked in source code:

Error 53 'IsAdminMenu' is not declared. It may be inaccessible due to its protection level. ~\admin\Files\WebUpload.ascx.vb 161 20

Error 62 Type 'DotNetNuke.Modules.Admin.ResourceInstaller.PaInstaller' is not defined. ~\admin\Files\WebUpload.ascx.vb 361 47

Error 63 Type 'DotNetNuke.Services.Localization.LocaleFilePackReader' is not defined. ~\admin\Files\WebUpload.ascx.vb 369 56

I'm entirely new to the DNN environment but have experience with Win/Web Forms and MVC.

It looks to me like there are DLLs missing from the checked in code but I don't know where I'd find them.

Has anyone experienced this before?